Hi,
The attached patch fixes the issue that the scaling filter, when used
with an expression like
scale=iw*sar:ih (to correct non-square pixels), can lead to odd width or height.
Example: 720x576 [SAR 12:11] and scale=iw*sar:ih
before patch: 785x576
after patch: 786x576
It causes a vf_pad filter further in the filter chain to abort because
of the odd video size. I suspect codecs and players don't like odd
dimensions either.
Jeroen Ost
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